body {
    background-image:linear-gradient(to right, rgba(251,194,235,0.31), rgba(166,193,238,0.31));
    background-attachment: fixed;
}

#div_head {
    position: fixed;
    top: 0px;
    left: 0px;
    width: 100%;
    height: 60px;
    background: rgba(155, 179, 229, 1);
    box-shadow: 0 0 5px rgba(128, 128, 128, 1);
    z-index: 1;
}

#span_listIcon {
    position: absolute;
    top: 50%;
    left: 10px;
    transform: translateY(-50%);
    width: 30px;
    height: 30px;
    background: url("../image/list.png") no-repeat;
    background-size: 100% 100%;
}

#span_bbsSysManage {
    position: absolute;
    top: 50%;
    left: 50px;
    transform: translateY(-50%);
    font-size: 25px;
    font-weight: bolder;
    color: white;
}

#span_admin {
    position: absolute;
    top: 50%;
    right: 150px;
    transform: translateY(-50%);
    font-family: 幼圆;
    font-size: 20px;
    font-weight: bolder;
    color: white;
}

#span_Aname {
    position: absolute;
    top: 50%;
    right: 100px;
    transform: translateY(-50%);
    font-family: 幼圆;
    font-size: 20px;
    font-weight: bolder;
    color: white;
}

#btn_logout {
    position: absolute;
    top: 50%;
    right: 20px;
    transform: translateY(-50%);
    width: 35px;
    height: 30px;
    border: 0px;
    background: url("../image/logout.png") no-repeat;
    background-size: 100% 100%;
}

#btn_logout:active,
#btn_logout:hover {
    opacity: 50%;
}

#div_navi {
    position: fixed;
    top: 60px;
    left: 0px;
    width: 200px;
    height: calc(100% - 60px);
    background: rgba(236, 223, 251, 1);
    box-shadow: 0 0 5px rgba(128, 128, 128, 1);
}

#form_goToMainManage {
    width: 180px;
    height: 40px;
    margin: 50px 10px 30px;
    border-radius: 10px;
}

#form_goToMainManage:hover {
    background: white;
    opacity: 62%;
}

#span_homeIcon {
    float: left;
    width: 30px;
    height: 30px;
    margin-top: 5px;
    margin-left: 25px;
    background: url("../image/home.png") no-repeat;
    background-size: 100% 100%;
}

#btn_goToMainManage {
    float: right;
    width: 100px;
    height: 40px;
    margin-right: 20px;
    border: 0px;
    background: 0px;
    font-size: 20px;
    font-family: 幼圆;
    font-weight: bolder;
    color: rgba(146, 155, 166, 1);
}

#btn_goToMainManage:active,
#btn_goToMainManage:hover  {
    color: rgba(32, 160, 255, 1);
}

#form_goToUserManage {
    width: 180px;
    height: 40px;
    margin: 30px 10px;
    border-radius: 10px;
}

#form_goToUserManage:hover {
    background: white;
    opacity: 62%;
}

#span_groupIcon {
    float: left;
    width: 30px;
    height: 30px;
    margin-top: 5px;
    margin-left: 25px;
    background: url("../image/group.png") no-repeat;
    background-size: 100% 100%;
}

#btn_goToUserManage {
    float: right;
    width: 100px;
    height: 40px;
    margin-right: 20px;
    border: 0px;
    background: 0px;
    font-size: 20px;
    font-family: 幼圆;
    font-weight: bolder;
    color: rgba(146, 155, 166, 1);
}

#btn_goToUserManage:active,
#btn_goToUserManage:hover {
    color: rgba(32, 160, 255, 1);
}

#form_goToArticleManage {
    width: 180px;
    height: 40px;
    margin: 30px 10px;
    border-radius: 10px;
}

#form_goToArticleManage:hover {
    background: white;
    opacity: 62%;
}

#span_libraryBooksIcon {
    float: left;
    width: 30px;
    height: 30px;
    margin-top: 5px;
    margin-left: 25px;
    background: url("../image/library_books.png") no-repeat;
    background-size: 100% 100%;
}

#btn_goToArticleManage {
    float: right;
    width: 100px;
    height: 40px;
    margin-right: 20px;
    border: 0px;
    background: 0px;
    font-size: 20px;
    font-family: 幼圆;
    font-weight: bolder;
    color: rgba(146, 155, 166, 1);
}

#btn_goToArticleManage:active,
#btn_goToArticleManage:hover {
    color: rgba(32, 160, 255, 1);
}

#form_goToCommentManage {
    width: 180px;
    height: 40px;
    margin-top: 30px;
    margin-left: 10px;
    margin-right: 10px;
    border-radius: 10px;
}

#form_goToCommentManage:hover {
    background: white;
    opacity: 62%;
}

#span_forumIcon {
    float: left;
    width: 30px;
    height: 30px;
    margin-top: 5px;
    margin-left: 25px;
    background: url("../image/forum.png") no-repeat;
    background-size: 100% 100%;
}

#btn_goToCommentManage {
    float: right;
    width: 100px;
    height: 40px;
    margin-right: 20px;
    border: 0px;
    background: 0px;
    font-size: 20px;
    font-family: 幼圆;
    font-weight: bolder;
    color: rgba(146, 155, 166, 1);
}

#btn_goToCommentManage:active,
#btn_goToCommentManage:hover {
    color: rgba(32, 160, 255, 1);
}

#div_mainPart {
    position: absolute;
    top: 60px;
    left: 200px;
    width: calc(100% - 200px);
}

#div_select {
    position: relative;
    top: 30px;
    left: 55px;
    width: calc(100% - 100px);
}

#div_data {
    position: relative;
    top: 70px;
    left: 50px;
    width: calc(100% - 100px);
}

table {
    width: 100%;
    height: auto;
    text-align: center;
    border-radius: 8px;
    background: white;
    border-collapse: collapse;
    box-shadow: 0 0 3px rgba(128, 128, 128, 1);
    padding-left: 10px;
    padding-right: 10px;
    opacity: 85%;
}

td {
    max-width: 500px;
    text-align:center;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

tbody tr:nth-child(odd) {
    border: 0px;
    background-color: rgba(240, 240, 240, 1);
}

#div_paging {
    position: relative;
    left: 30%;
    width: 550px;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 5px;
    background: white;
    box-shadow: 0 0 3px rgba(128, 128, 128, 1);
    opacity: 85%;
}

a {
    text-decoration: none;
}

a:link {
    color: rgba(240, 134, 80, 1);
}